; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s -check-prefix=X64 ; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s -check-prefix=X32 ; tailcc will turn all of these musttail calls into tail calls. declare dso_local tailcc i32 @tailcallee(i32 %a1, i32 %a2) define dso_local tailcc i32 @tailcaller(i32 %in1, i32 %in2) nounwind { ; X64-LABEL: tailcaller: ; X64: # %bb.0: # %entry ; X64-NEXT: jmp tailcallee # TAILCALL ; ; X32-LABEL: tailcaller: ; X32: # %bb.0: # %entry ; X32-NEXT: jmp tailcallee # TAILCALL entry: %tmp11 = musttail call tailcc i32 @tailcallee(i32 %in1, i32 %in2) ret i32 %tmp11 } declare dso_local tailcc ptr @alias_callee() define tailcc noalias ptr @noalias_caller() nounwind { ; X64-LABEL: noalias_caller: ; X64: # %bb.0: ; X64-NEXT: jmp alias_callee # TAILCALL ; ; X32-LABEL: noalias_caller: ; X32: # %bb.0: ; X32-NEXT: jmp alias_callee # TAILCALL %p = musttail call tailcc ptr @alias_callee() ret ptr %p } declare dso_local tailcc noalias ptr @noalias_callee() define dso_local tailcc ptr @alias_caller() nounwind { ; X64-LABEL: alias_caller: ; X64: # %bb.0: ; X64-NEXT: jmp noalias_callee # TAILCALL ; ; X32-LABEL: alias_caller: ; X32: # %bb.0: ; X32-NEXT: jmp noalias_callee # TAILCALL %p = musttail call tailcc noalias ptr @noalias_callee() ret ptr %p } define dso_local tailcc void @void_test(i32, i32, i32, i32) { ; X64-LABEL: void_test: ; X64: # %bb.0: # %entry ; X64-NEXT: jmp void_test # TAILCALL ; ; X32-LABEL: void_test: ; X32: # %bb.0: # %entry ; X32-NEXT: pushl %esi ; X32-NEXT: .cfi_def_cfa_offset 8 ; X32-NEXT: .cfi_offset %esi, -8 ; X32-NEXT: movl {{[0-9]+}}(%esp), %eax ; X32-NEXT: movl {{[0-9]+}}(%esp), %esi ; X32-NEXT: movl %esi, {{[0-9]+}}(%esp) ; X32-NEXT: movl %eax, {{[0-9]+}}(%esp) ; X32-NEXT: popl %esi ; X32-NEXT: .cfi_def_cfa_offset 4 ; X32-NEXT: jmp void_test # TAILCALL entry: musttail call tailcc void @void_test( i32 %0, i32 %1, i32 %2, i32 %3) ret void } define dso_local tailcc i1 @i1test(i32, i32, i32, i32) { ; X64-LABEL: i1test: ; X64: # %bb.0: # %entry ; X64-NEXT: jmp i1test # TAILCALL ; ; X32-LABEL: i1test: ; X32: # %bb.0: # %entry ; X32-NEXT: pushl %esi ; X32-NEXT: .cfi_def_cfa_offset 8 ; X32-NEXT: .cfi_offset %esi, -8 ; X32-NEXT: movl {{[0-9]+}}(%esp), %eax ; X32-NEXT: movl {{[0-9]+}}(%esp), %esi ; X32-NEXT: movl %esi, {{[0-9]+}}(%esp) ; X32-NEXT: movl %eax, {{[0-9]+}}(%esp) ; X32-NEXT: popl %esi ; X32-NEXT: .cfi_def_cfa_offset 4 ; X32-NEXT: jmp i1test # TAILCALL entry: %4 = musttail call tailcc i1 @i1test( i32 %0, i32 %1, i32 %2, i32 %3) ret i1 %4 }